Diethyldisulfoammonium chlorometallates as heterogeneous Brønsted–Lewis acidic catalysts for one‐pot synthesis of 14‐aryl‐7‐(N‐phenyl)‐14H‐dibenzo[a,j]acridines |
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Authors: | Arup Kumar Dutta Pinky Gogoi Ruli Borah |
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Institution: | Department of Chemical Sciences, Tezpur University, Tezpur, Assam, India |
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Abstract: | A new series of Brønsted–Lewis acidic diethyldisulfoammonium chlorometallates, DEDSA]FeCl4] and DEDSA]2Zn2Cl6], were synthesized as solid materials from the reaction of (Et)2N(SO3H)2]Cl] ionic liquid with transition metal chlorides (FeCl3 and ZnCl2) at 80 °C in neat condition for 2 h. The chlorometallates were fully characterized using various spectroscopic and analytical techniques such as Fourier transform infrared, UV–visible and Raman spectroscopies, powder X‐ray diffraction, scanning electron microscopy, energy‐dispersive X‐ray and thermogravimetric analyses, Hammett acidity and elemental analyses. Their catalytic activity was studied as reusable heterogeneous catalysts for the three‐component synthesis of novel 14‐aryl‐7‐(N‐phenyl)‐14H‐dibenzoa,j]acridines under solvent‐free conditions at 100 °C. |
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Keywords: | 14‐aryl‐7‐(N‐phenyl)‐14H‐dibenzo[a j]acridines diethyldisulfoammonium chlorometallates heterogeneous catalysis multicomponent recyclable catalyst |
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